Fildena 100 mg is a popular medication used to treat erectile dysfunction (ED), a condition that affects millions of men worldwide. It contains sildenafil citrate, the same active ingredient found in Viagra, which works by increasing blood flow to the penis, allowing men to achieve and maintain a firm erection during sexual activity.

Fildena functions as a phosphodiesterase type 5 (PDE5) inhibitor. When a man is sexually aroused, nitric oxide is released in the body, stimulating the production of cyclic guanosine monophosphate (cGMP). This chemical helps relax blood vessels in the penile region, enabling better blood circulation. However, PDE5 enzymes break down cGMP, leading to poor blood flow and erectile difficulties. By inhibiting PDE5, Fildena ensures that cGMP levels remain high, promoting prolonged erections.